Emitter



FIG. 1 is a perspective view of an emitter, showing the new design.

FIG. 2 is a front view thereof.

FIG. 3 is a side view thereof.

FIG. 4 is an end view thereof; and,

FIG. 5 is a top perspective view of the dog bone-shaped emitter of FIG. 1 in a water bowl.

The broken lines illustrate portions of the emitter that form no part of the claimed design. 

CLAIM The ornamental design for an emitter, as shown and described. 